Emily Windsnap and the Castle in the Mist

When she incurs Neptune's wrath by finding a diamond ring buried under rocks in the ocean, Emily is put under a curse that will force her to choose to be either a mermaid or a human and split up her parents forever.

i couldn't bare loosing my parents id cry my head off till execution!!!!! if i was emily i would just give up myself cuz i cant live with out my parents and i would be sad so instead i would give up myself